Rare diseases · Sign or symptom
Hemimacroglossia
Increased size of half of the tongue
HP:0100875
What it means
Increased length and width of one half of the tongue.
Rare diseases that can present with this1
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Hemiglossal hyperplasia · Hemiglossal hypertrophy · Hyperplasia of half of the tongue · Hypertrophy of half of the tongue · Large half of tongue
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.